Advertisements
Advertisements
Question
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Advertisements
Solution
Oxygen and hydrogen
Chemical composition = H2 and O2 proportion 2:1
APPEARS IN
RELATED QUESTIONS
Give reason On opening a bottle of a cold drink, a fizz sound is heard.
Give balanced chemical equation for the reaction of water with Iron .
What do you understand by Temporary hardness?
Select the correct answer of the following statement:
A solution which can pass through a filter paper but not through a semipermeable membrane.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Explain the following observation:
Washing-soda become coated with a white powder when left exposed to the atmosphere.
True or false? Correct the wrong statement.
We get rainwater throughout the year.
Water is the most ________ resource on the Earth.
State whether the following statement is True or False. If false, give the correct statement.
Snow and ice both are solid forms of water
Fill in the blanks in the following statements using words given in the box.
| air, handpumps, cholera, water, large, ground |
A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.
